Transcript (Video OIP) RRM Issues

November 2002
doc.: IEEE 802.11-02/728r0
Radio Resource Measurement
IEEE 802.11 WLAN
Video Over IP (Video OIP)
RRM Issues
Submission
Slide 1
Richard Paine, Boeing
November 2002
doc.: IEEE 802.11-02/728r0
Agenda
Radio Resource Measurement
IEEE 802.11 WLAN
• Boeing Video Over IP Arch
• Issues
• Video OIP RRM Experiences
• Video OIP RRM Issues
• Video OIP RRM Conclusions
Submission
Slide 2
Richard Paine, Boeing
Infrastructure Server
functions
Incl. Camera
microphone
Radio Resource
Boeing Intranet
Measurement
Webcast
Streaming
Server
Internal
H.323 MCU
gatekeeper
Partner
Streaming
Server
External
proxy
T.120
Proxy
H.323 Proxy
(Firewall)
Etherphone
H.320
MCU
Hosting
ASP
for
Video
Stream
H.323
Gatekeeper
Auth., Acctg.
Directory
Services
H.320
codec
Internet
doc.: IEEE
802.11-02/728r0
Int’l
Customer\
H.323/
H.320
Gateway
T.120
MCU
Streaming
External
HTTP
Reverse
proxy
Infrastructure provided Encryption
Tunnel Services – IPsec, PPTP
Streaming
Content
Scheduling
Service
Streaming
Server
Internal
RSVP ,RED IP Preced
H323
Codec
VOD
Streaming
Server
Streaming
Video
Cache
Server
Mcast Intranet
IEEE 802.11 WLAN
Streaming
encoder
Streaming
Player
Perimeter
QOS Boeing
November 2002
Client/
Codec
Proprietary
codec
(Rembrandt)
Submission
Babylon
Encryption
MCU
(Proprietary)
Classic
with
Encryption
External
Networks
H323
Codec
H.320
CODEC
ISDN
Switched Services
(telephone switched)
Rev 5
POTS
User
POTS
Boeing ISDN
CO ISDN
5/10/01
Dedicated Line
Slide 3
Streaming
Player
Streaming
encoder
Telephone
Server and
Gateway
Customer provided Infra
Lucent
(H.320)
MCU
Public
Internet
Hosting
ASP
for Intl
Video
Stream
access
Rev5-5/10/01
ISDN
RichardIPPaine, Boeing
November 2002
Radio Resource Measurement
doc.: IEEE 802.11-02/728r0
Issues
IEEE 802.11 WLAN
Schedule for H.323 / H.320 Gateway
Perimeter / Fire Wall
H323 uses dynamic ports. Each H323 stack manufacture may use different dynamic ports.
FW must support all different systems on the LAN. E.g. Cisco “Pix” supports TANDBERG, CISCO, NetMeeting etc.
Encryption for IP video streams
Delivery of video stream over HTTP proxy has variable latencies affecting QOS
Need to develop a infrastructure provided Encryption service for video
Perimeter architecture does not address encryption of video
Video streams can overwhelm VPN endpoints
Affordability
Bridging (multipoint conferencing)
Transition of H.320 systems to H.323 (IP based conferencing)
SIP technology maturity and integration
Session control and scheduling service impacts
Network QOS deployment / scalability
WAN network latency and variation in latency
Bandwidth
General Mcast issues:
1.
MCAST deployment (pace of deployment on Intranet, low probability on Extranet)
2.
Mcast BGP impact on Intranet
3.
Scalability
4.
Individuality : the ability of the service to deal with differing requirements imposed because of
heterogeneity in the end-users capabilities and/or heterogeneity of the network paths (wireless (LAN, MAN),
wired (LAN, MAN, WAN)) leading to the end-users.
5.
Layered video multicast protocols- video is multicast in multiple layers over separate multicast groups.
Receivers join as many layers as they can handle - how does one deal with congestion in such a scenario,
6.
Multicast security - authentication, key distribution, etc
Submission
Slide 4
Richard Paine, Boeing
November 2002
Radio Resource Measurement
doc.: IEEE 802.11-02/728r0
Issues Cont’d
IEEE 802.11 WLAN
Common call setup between video and VOIP (disconnected directories, address
books)
Integration with VOIP and seamless interworking
Bandwidth
384 kb/s call on 10 Mb half duplex network equals:
2*384+overlay (about 20%)  1mb/s
3 Video Streams per WLAN
Gateways to the ISDN
H.323 element reliability / scalability
Gatekeeper, MCU
Latency
Streaming products have reduced latency
Obsolescence of existing Coder/Decoders (Codecs)
Submission
Slide 5
Richard Paine, Boeing
November 2002
Radio Resource Measurement
doc.: IEEE 802.11-02/728r0
Proposed Products / Services
IEEE 802.11 WLAN
•Modular systems - CCI Tandberg
•Theater and enhanced theater systems CLI – Tandberg
•Electronic Conference rooms Tandberg
•Personal (desktop) – Netmeeting, Tandberg, Streaming,
Webex
•Dedicated – Avistar, Polycom
•H.320 phaseout – 3 years
Submission
Slide 6
Richard Paine, Boeing
November 2002
doc.: IEEE 802.11-02/728r0
Current Boeing Codec Inventory
Radio Resource Measurement
IEEE 802.11 WLAN
VIDEO
AUDIO
CTX
MCUCTX
CTX+
Rembrandt
VAPC 16
G728
HCTX
G728
G711
G722
CVDSM
FCIF
QCIF
H.261
H.263
Submission
Slide 7
Richard Paine, Boeing
November 2002
doc.: IEEE 802.11-02/728r0
Shared Services Group
Computing & Network O
Operations - Network
Radio Resource Measurement
IEEE 802.11 WLAN
1999
Video Conferencing - Future
2000
Basic & Stable
Technology
Refresh
Basic & Stable
Technology
Refresh
2001
2002
2003
2004
IP
Encryption
Modular (ISDN)
Theater
Enhanced Theater
Basic & Stable
Technology
Refresh
Early Adopters
ECR
IP
ISDN
All Group (T-1)
Wide Area
All Group (IP)
Internet
Enterprise
Trials
IP
Early Adopters
Hybrid (ISDN)
Analog/Compressed Video
Various Technologies
Early Adopters
PC Desktop (IP)
Enterprise
Internet
Trials
Niche Deployments
H.320/H.323
ISDN / IP Gateway
deployed
PC Desktop (ISDN)
Introduction
Limited Use
Program provided Encryption
Infra. provided Encryption
Submission
Wide Area
Large Scale
No more new deployment
Slide 8
Richard Paine, Boeing
November 2002
Shared Services Group
doc.: IEEE 802.11-02/728r0
Radio
Resource
Measurement
Computing
& Network
Operations - Network
O
Video Conferencing - Interim Step
IEEE 802.11 WLAN
Boeing Internal
Customers/ Suppliers/ Partners
Theater
Digital
Network
Gateway
H.320 Users
Modular
Desktop
Switched
Network
(ISDN)
Gateway
Boeing
Intranet
Submission
Internet
H.323
Firewall
Slide 9
H.323 Users
Richard Paine, Boeing
November 2002
doc.: IEEE 802.11-02/728r0
Video Conferencing - Future
Shared Services Group
Computing & Network O
Operations - Network
Radio Resource Measurement
IEEE 802.11 WLAN
Boeing Internal
Customers/ Suppliers/ Partners
Theater
Internet
H.323
Firewall
H.323 Users
Modular
Boeing
Intranet
Gateway
Switched
Network
(ISDN)
Submission
H.320 Users
Slide 10
Richard Paine, Boeing
Bypass Long Distance
doc.: IEEE 1
802.11-02/728r0
VOIP Tactical Architecture
November 2002
Network Utilities
Radio Resource Measurement
IEEE 802.11 WLAN
PSTN
6
Boeing
Telephone
BTN
Network (IBM)
(IBM)
PCS/
Cellular
Zone Mgmt
Call Detail Recording
E911
Voice Messaging
Security
Troubleshooting Tools
Directory
Call Mgmt and Routing
Conferencing
Address Conversion
QoS Policy
Telephony
Server
H.323
GW
MCU
FAX
Server
2
3
4
5
6
7
Provide Trunks
Dialtone - Hybrid
Dialtone - IP
Wireless
Secure Remote Access
(I.e. Tunneling)
Handset/Terminal
Intranet
Router
Pico--basestation
IP Wireless Office
Solution (WOS)
7
Perimeter
Router
Internet
Legacy
Telephony
PBX
3
2
SITA Aeronet
Router
4
Router
6
International Sites, Remote Access,
Work-at-Home, Extranet
Submission
5
Legacy
Telephony
PBX
PSTN
802.11 AP
1
Telephony
Server
Slide 11
Small/Medium Sites
Laptop
PDA Device
PCS Phone
WLAN Phone
Barcode Scanner
Richard Paine, Boeing
Boeing Proprietary
doc.: IEEE 802.11-02/728r0
November 2002
International VOIP
Radio Resource Measurement
Gatwick England
IEEE 802.11 WLAN
Manchester
England
Cardinal Point
Workstation
64kbs
Telephone
PBX
Telephone
128kbs
IP Telephone
425-865-2704
1meg
Workstation
Zurick Switzerland
IP Telephone
425-865-2940
Router
BFS British
AirlInes London
64kbs
Router
SITA
Router
256kbs
Concentrator
FXS Telephone
206-766-5715
206-766-5716
FXS
128kbs
4 Telephones
206-766-5910
766-5911
766-5912
766-5913
Submission
Workstation
Dublin Ireland
Workstation
FXS Telephone
206-766-5717
206-766-5718
Slide 12
PBX
Telephone
SEATTLE
Boeing
Phone
System
Workstation
Boeing Proprietary
Richard Paine, Boeing
November 2002
Radio Resource Measurement
doc.: IEEE 802.11-02/728r0
H.323
IEEE 802.11 WLAN
Submission
Slide 13
Richard Paine, Boeing
November 2002
doc.: IEEE 802.11-02/728r0
Radio Resource Measurement
IP Video / IP Voice Technical Scope
IEEE 802.11 WLAN
Webcast
from 1-1 to
1000's
IP Video
Video
Conferencing
People to people
System to people (training)
Appl. Sys data type
IP Voice
/ VOIP
Interpersonal:
People to people
People to system
System to People
Appl sys. Data type
System control
Video on
demand (VOD)
Audio
as
stored
data
Sched. Demand
Webcast
to 1
Modular
Theater
Desktop
Still images
conferencing stored as
data
Video
stored as
data
Standard
Codec
Netmeeting
Submission
Stand
alone
Hdwre
codec
Voice
Only
Webcast
from 1-1
to 1000's
PC
Software
codec
Voice
mail
Slide 14
Audio
as
Audio O/S
as
GUI
Audio
App.
embedded GUI
in IP
Telephone Video
Systems
Richard Paine, Boeing
November 2002
doc.: IEEE 802.11-02/728r0
Video OIP WLAN Conclusions
Radio Resource Measurement
IEEE 802.11 WLAN
• Per Client STA Tables
•
•
•
•
•
•
•
•
•
•
•
APs visible
SSIDs
Other STAs Visible
Standard Definition RSSI to each
Potential throughput to all
• Link margins
Potential data-rate to all
• Link margins
Delay
Potential Delay
Trend per client
Checking other clients and APs
Packet Sizes
• AP STA Tables
• Stable Physical Location
• Authentication state
Submission
Slide 15
Richard Paine, Boeing